The two statues, named the "Kouri (plural) of Tenea", are on display in a specially designed exhibition hall at the museum.
The statues were unearthed during an illegal excavation in Klenies district of southern Corinth prefecture.
Police arrested antiquities smugglers in May 2010 and the statues were sent to the National Archaeological Museum in Athens for restoration.
According to police, smugglers had demanded 10 million euros for the statues.
Culture Minister Pavlos Geroulanos represented the government.